Pour 2 cups of water in a bowl and add ¼ tsp turmeric powder. Cut brinjals into thin, long slices. Add them to the water and set aside.

Mix together ginger-garlic paste, 1 tbsp lemon juice, red chilli powder, jeera powder and salt in another bowl.

Drain the brinjal slices and add them to the marinade mixture. Mix well so that all the slices are evenly coated with the masala. Set aside to marinate for 5 minutes.

Heat 2 tsp oil in a small non-stick pan. Add onion and green chillies. Sauté till soft. Add mint leaves and sauté for 30 seconds. Add mashed paneer, masalas and walnuts. Mix well.

Pre-heat Air Fryer for 5 minutes. Arrange the brinjal slices in the fry basket and close it properly. Keep Air Fryer at 180°C for 10–15 minutes.

Transfer the brinjal slices onto a plate. Place some filling at one end and roll the slices. Arrange the rolls on a serving plate, garnish with mint leaves and serve.